Setup for insects in flight. This setup take pictures of insects inflight. An optical extra lens system is added to look for insects in focus. Only 40 usec are needed to check if there are objects in focus. This unit works on reflected laserlight. No more leaserbeams are needed, no more long arms to put the receivers on the top of the system. The full distance is now free between camera and insects. The unit works in full dark or even in full bright sun. Sensivity can by adjusted by mean of a simple potmeter. To work in full dark 2 to 4 extra high power leds are added. 2 of this high power leds are UV leds at 405nm. This UV light attrack some insects inflight.